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coldinthesouth
Feb 19, 2008, 01:44 PM
I have an old gravity floor furnace and the pilot light lights & stays on but, the furnace won't fire up. I replaced the thermostat and it still won't fire. I used a jumper wire on the thermostat connectors and it fires. So, does this mean the new thermostat is bad too or is there something else?

hvac1000
Feb 19, 2008, 04:00 PM
If you jumped the two wires to the thermostat and it worked then something must be wrong with the new thermostat or you wired it wrong.

coldinthesouth
Feb 20, 2008, 03:54 PM
Thanks so much for the quick answer.
Yeah, I already checked the wiring -- heck, there are only two wires so, if one way doesn't worh the other should (far from rocket science). So, I took the $30 Honeywell back and got the $10 Hunter model and yep, she fired right up via a theromstat setting again all is well and we can now survive another California winter! :) THANKS FOR YOUR HELP!